MOSCOW, December 22. /TASS/. Russia will consider possible retaliatory measures against the sanctions imposed by the US and Canada, although it is important that they do not worsen the economic situation, Russian presidential aide Yuri Ushakov said on Monday.

“I cannot say now what particularly will be done in response, but it is evident that some measures will be considered, but I still don’t know what character they will have,” Ushakov said.

“It is most important that sanctions do not deteriorate the situation in the world and the economy, and also in this country,” he said.

Ushakov said Russia hopes US will realize the futility of sanctions against Russia sooner than in case with Cuba.

He also noted that no talks are being conducted on possible contacts between Russian and US leaders.

US President Barack Obama signed on Friday an executive order to impose a ban on trade ties with Crimea, which rejoined Russia after a referendum in mid-March.

The executive order “prohibits the export of goods, technology, or services to Crimea and prohibits the import of goods, technology, or services from Crimea, as well as new investments in Crimea,” according to the White House statement.